Thanks to Bob and Chris for the help! I created a "header" file, put the=20
"#defines" statements in it and included that "header" file in my source=20
files. Works great and I now understand why the compiler/linker was=20
displaying those errors.

Thanks guys,
-rob

Original Message
Hello Hello Hello

You have to put your #defines in a header file that you include in both=20
source files. This is because #defines are just text substitution. So=20
this makes it easy to understand your label error:

given:

     GLOBAL    flag_X

after textual substitution, which gets rid of the #defines and replaces=20
references to them with their text value, what the assembler sees thus:

    GLOBAL    2

which is obviously illegal.

-- Bob Ammerman
RAm Systems



Original Message
Hello ,

   Using assembly and I'm trying to learn to split my programs into=20
relocatable modules and can't seen to be able to reference a flag which=20
is declared in a relocatable file. Here is an example of what I've tried=20
to do:

In my relocatable sub .asm file I have:
     GLOBAL    vFlag_var
vFlag_var    res    1        ;register to hold flag bits

#define    flag_X    2        ;define a label to a bit number for use as=20
a flag
     GLOBAL    flag_X        ;this seems to generate a 121 error:=20
"illegal label (2)"

Then in my main code file, I intended to access the flag with:
     EXTERN    vFlag_var
     EXTERN    flag_X
     btfss    vFlag_var, flag_X

So why does this not work ? Why does this cause an illegal label error?


Also I've tried to use a flag this way (which I prefer):
     GLOBAL    vFlag_var
vFlag_var    res    1
#define    MyFlag    vFlag_var,2
     BLOBAL    MyFlag            ;but this also causes a 121 error:=20
"illegal label (2)"

So how do you define a flag bit to a variable and declare it GLOBAL so=20
that you can access it using an EXTERN from another file?

Thanks for any help!
-rob



















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